Ultrasonic intrusion detector



FIG. 1 is a perspective view of an ultrasonic intrusion detectorembodying the design of the invention;

FIG. 2 is a top plan view on an enlarged scale of the detector of FIG.1, the bottom plan view being identical;

FIG. 3 is a rear elevational view on an enlarged scale of the detectorof FIG. 1;

FIG. 4 is a right elevational view on an enlarged scale of the detectorof FIG. 1, the left elevational view being the mirror image thereof; and

FIG. 5 is a front elevational view on an enlarged scale of the detectorof FIG. 1.

The ornamental design for an ultrasonic intrusion detector,substantially as shown and described.